B.
K. Singh, S. R. Sharma and B. Singh
Indian Journal of
Horticulture 68 (4): 490-497, 2012
bksinghkushinagar@yahoo.co.in
ABSTRACT
Fifty-five cross combinations along with their sixteen parents were
transplanted in randomized block design to generate information on combining
ability of antioxidants and economic traits in cabbage. The significance of mean
squares of parents and line x tester interactions revealed the pervasiveness of
additive and non-additive variance. Non-additive gene action was found to be
predominant for carotenoid content, early maturity, frame spread, gross plant
weight, net head weight, core length, harvest index, and head compactness,
nevertheless additive genes were responsible for synthesis of ascorbic acid and
expression of non-wrapper leaves in desirable direction. Golden Acre was found to be good combiner for seven economically
important traits viz., carotenoid,
earliness, net head weight, number of non-wrapper leaves, polar and equatorial
diameter, and core length. Among 55 cross combinations, Pride of Asia × Red
Cabbage, CMS-GA × AC-1019, CMS-GA × EC-490192, and Golden Acre × AC-1021 were
most outstanding as indicated by respective high SCA effect. Majority of the
cross combinations exhibited desirable SCA
effects for various traits and involved at least one of the parents as poor
general combiner, which signifies the greater importance of SCA than GCA in
predicting hybrid combinations for desirable traits and scope for heterosis
breeding for improving the traits of nutrition and economic importance.
Key-words:
Carotenoid, ascorbic acid, cabbage, nutrition, GCA, SCA.
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